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Method for sequencing DNA base pairs

Patent ·
OSTI ID:869068

The base pairs of a DNA structure are sequenced with the use of a scanning tunneling microscope (STM). The DNA structure is scanned by the STM probe tip, and, as it is being scanned, the DNA structure is separately subjected to a sequence of infrared radiation from four different sources, each source being selected to preferentially excite one of the four different bases in the DNA structure. Each particular base being scanned is subjected to such sequence of infrared radiation from the four different sources as that particular base is being scanned. The DNA structure as a whole is separately imaged for each subjection thereof to radiation from one only of each source.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA
DOE Contract Number:
AC03-76SF00098
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Number(s):
US 5270214
OSTI ID:
869068
Country of Publication:
United States
Language:
English

References (3)

Direct observation of native DNA structures with the scanning tunneling microscope journal January 1989
Imaging of single uncoated DNA molecules by scanning tunneling microscopy. journal July 1989
Images of single-stranded nucleic acids by scanning tunnelling microscopy journal November 1989